Hex #55545f or rgb(85,84,95) in RGB space is the tint of violet. It has hue angle of 245.45 degrees, value = 37 and saturation = 12. #55545f can be obtained by mixing 4 colors: 1 drop of red, 2 drops of magenta, 3 drops of blue, 3 drops of green.
Nearest safe hex - #666666. Below you can see the block with #55545f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55545f to the mixer and play with it.